Modified cat’s eyes offer icy road warnings

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Drivers who find themselves caught on icy roads often aren't aware until their car starts skidding, especially when black ice is present. New Zealand-based lighting manufacturers SolarBright has now created the Pateye, a small LED device that is embedded into roads and lights up when the temperature drops below zero. The devices are designed to be placed into roads much like traditional cat's eyes – reflectors that help drivers keep in the right lane by marking the road ahead of them. Rather than simply reflecting light, Pateyes use high-visibility blue LEDs that are charged using the solar energy they collect…

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